Albert j



(No Model.)

A. J. DOTY.

HEATING GAS STOVE,

No. 331,950. Patented Dec. 8, 1 885;

INVENTOR %& Z@

ATTORNEY.

WITNESSES N. vcrzns mwumo nm wuhm um n. a

UNITED STATES PATENT OFFICE.

ALBERT J. DOTY, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO THE vGOODWIN GASSTOVE AND METER COMPANY, OF SAME PLACE.

HEATING GAS-STOVE.

SPECIFICATION forming part of Letters Patent No. 331.950, dated December 8, 1885.

Application filed April 9, 1884. Serial No. 127,149. (No model.)

To all whom, it may concern.-

Be it known that I, ALBERT J. DoTY. residing in Philadelphia, in the county of Philadelphia, State of Pennsylvania, have invented a new and Improved Heating Gas- Burner, of which the following is a specification, reference being had to the annexed drawings, forming a part thereof. 4

In gas-stoves as ordinarily made the heat generated by the combustion of the gas is distributed by multiplying burners, or by making the burners of great size, thereby necessarily increasing the quantity of gas required to produce a given amount of heat. Where single burners are employed, the heat is more or less concentrated at one or more points, and not uniformly distributed. In gas cooking-stoves this feature is particularly objectionable.

The object of my invention is to provide a burner for gas-stoves which will distribute the heat uniformly throughout the entire area of the stove, and will at the same time heat the combustible mixture of air and gas before ignition, so that combustion will be immediate and complete.

My invention consists in an apertured concavo-convex plate having on the convex side thereof a gas and air tube communicating with the central aperture of the plate, and arranged in connection with the concavo-convex plate to form a Bunsen burner, and in the combination therewith of a deflecting-plate placed oppositeand near the opening in the concavoconvex plate on the concave side.

In use my improved burner is placed in a gas-stove with the concavo-convex plate arranged horizontally, or nearly so, and with the concave side thereof downward.

Figure 1 is a side elevation, partly in section, of a gasstove having my improvement applied. Fig. 2 is an inverted plan view of my improved burner, partly in section.

Similar letters of reference indicate like parts in the different figures of the drawings.

A concavoconvex plate, A, preferably of cast-iron, and of a size and shape corresponding with the stove to which it is applied, and of which it forms a part, is secured in the stove-body with its concave side downward, as shown in Fig. 1. A circular aperture, B,

formed centrally in the plate A, is traversed by a cross-bar, a, for receiving a screw or rivet for supporting a circular concave deflectingplate, 0, below and near the said aperture.

The deflecting-plate G is larger in diameter than the aperture B, and is designed to spread the gas and flame issuing from the aperture B over the under surface of the plate A.

Upon the convex side of the plate A is fitted a hollow casting, D, over a rib, 0, formed on the back of the plate A. The casting D is tubulatcd, and the tubular end d projects through the wall of the gas-stove to receive an apertured cap, e, which is secured thereon by clamping-screws f, passing through the sides of the cap and bearing against the tube. the central aperture of the cap 0 is screwed a a gas-injecting nozzle, E, concentric with the tube (Z, and there are air-openings g in the cap e on each side of the gas-injector nozzle E.

Gas enters the burner through the nozzle E with sufficient velocity to draw in air through, the openings 9. The gas and air mix in the cavity of the casting D, and the mixture is propelled forward through the aperture 13, where it is ignited. The flame and gas issuing from the aperture B strike the deflectingplate 0. and the flame spreads over the concave surface of the plate A andheats the said I prefer the concavo convex form for the plate 0 A, it may be made plain, and instead of employingcast-iron for the said plate I may use fire-clay or other refractory material.

' My improved burners may be applied to larger uses by increasing their size or em- 5 ploying a number of burners, or by increasing the number of openings in the plate A for the combustible mixture.

I am aware that heating-burners have been constructed in which the gas has been disroo tributed before ignition by passing it through series of holes or slots; but such construction is objectionable on account of the liability of plate, A, having a central aperture, B, of the 10 such holes and slots to become clogged. I make tubulated casting D, connected to the top of no claim to such construction. In my inventhe plate, and the deflecting-plate O beneath tion the gas is not distributed until after it is the opening, as herein specified.

ignited. 1

Having thus described my invention, what ALBERT DOTY' I claim as new, and desire to secure by Letters Witnesses: Patent, is GEO. M. HOPKINS,

The combination, with a concavo-convex H. F. PARKER. 

